subdomain problem

[webjfg]

Hi
I have a problem With subdomain. Not the whole server. .. just with 1 domain.

On some browser it show ok. But on other it display the plesk default page.

I don't think it's a dns problem because all test is done on the same network.

Thank y ou

 

[webjfg]

Finaly i have found, it's a bad IPv6 configuration